In which flight phase would this be most common?
2007-12-12 12:23:47 · 6 answers · asked by stuttgart 3 in Cars & Transportation ➔ Aircraft
Seldom, but there's a great word they teach you for blowing off ATC... "unable".
If you blow off instructions without warning you are going to get in big trouble.
One common evasion is descending as slowly as possible when directed to descend before your economical descent point. So they instruct you to descend to from 350 to 250 when you are 200 miles out, so you give it 500fpm and hope you are a lot closer by the time they notice and haul you down into thick, warm, uneconomical air.
2007-12-12 13:54:09 · answer #1 · answered by Chris H 6 · 4⤊ 0⤋
Deviations often occurr as a part of ATC error. Sometime when a crew is directed by ATC to follow a procedure and another aircraft is too close, there is a system on the aircraft called "TCAS" Terminal Collision Avoidance System which will direct the aircraft to take specified measures via an interface in the cockpit in order to avoid the aircraft. The crew is then directed to advise ATC of the deviation as soon as possible.
2007-12-12 23:04:26 · answer #2 · answered by KENNETH C 2 · 1⤊ 0⤋
It happens... sometimes the instruction is missed and it takes ATC a while to notice that you never responded or complied with the direction... other instances where this may happen are described above... the most common time for this would be either cruise, when the pilots would miss an instruction just because they are not paying very close attention to the radios... or approach because the pilots are very busy with other things such as checklists, flying the plane, briefing the cabin... ect...
2007-12-12 22:16:27 · answer #3 · answered by ALOPILOT 5 · 1⤊ 0⤋
Can't say how often....but the most common reason is that the pilot feels that complying with ATC would be counter to safety....this is excusable so long as the pilot has justifiable rational for doing so and informs ATC ASAP that he/she has not or unable to comply.
In many 3rd world countries , this happens quite regularily as ATC is frequently without radar and/or incompetent.
2007-12-12 21:58:50 · answer #4 · answered by helipilot212 3 · 2⤊ 0⤋
Well, the pilot is the ultimate authority and if he/she feels the decision is not safe he or she has the right (in the FAR's) to not follow it. Fly the plane first and then talk to ATC.
2007-12-12 20:29:23 · answer #5 · answered by lissa_u 2 · 1⤊ 1⤋
does it happen often no we have to fill in a incident report on landing report every time we do that.
2007-12-12 22:10:37 · answer #6 · answered by joe pilot 2 · 0⤊ 0⤋